[Python-ideas] Why not picoseconds?

Thomas Jollans tjol at tjol.eu
Mon Oct 16 11:46:53 EDT 2017

On 2017-10-16 16:42, MRAB wrote:
> On 2017-10-16 13:30, Greg Ewing wrote:
>> Stephan Houben wrote:
>>> Interestingly, that 2.2e-16 pretty much aligns with the accuracy of the
>>> cesium atomic clocks which are currently used to *define* the second.
>>> So we move to this new API, we should provide our own definition
>>> of the second, since those rough SI seconds are just too imprecise
>>> for that.
>> The Python second: 1.1544865564196655e-06 of the time
>> taken for an unladen swallow to fly from Cape Town
>> to London.
> Is that an African or a European swallow?

It starts African, but it flips and can be observed as either African or
European in London. It's a neutrino swallow.

Thomas Jollans

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